There are many ways to abuse this, but it's one of the best examples of what I call my WALD theory that puts game-changing cards into three categories: Wrath of God - These are massive cards that you cast when you are behind, and then they bring you back to a neutral state, just like Wrath of God does when you are losing the creature battle
On average, it's felt that they don't have quite the same urgency to answer that many players at times don't enjoy in this space
MTG has some ways to tap and untap infinitely, so this card can be a fun and versatile artifact commander
They have a different back and are not legal in any sanctioned Magic event
Assuming metalcraft's not hard for your deck to achieve, Brotherhood Scribe can simply tap to net one energy per turn
Simply put, from the September 2012 announcement, its effect on games couldnt be ignored and sad though we are to see it go, we think it will make for a more interesting and diverse format